The Screw,tapping, cataloged under National Stock Number 5305-01-151-8331, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-151-8331 |
| Primary Part Number | 11508027 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.250 INCHES IN |
| Extended Washer Thickness | 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Head Height | 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Fastener Length | 1.450 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | G-4435-M CODE A FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Nonmachine Thread Style | GIMLET POINT (TYPE A, AB OR BA) |
| Features Provided | CASEHARDENED |
| Head Style | HEXAGON EXTENDED WASHER |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11508027 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 9422636 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 11504744 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 11508027 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 5305-01-151-8331 is a Screw,tapping, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-151-8331 has 1 manufacturer part number on file: 11508027 (General Motors Llc Dba General Motors Llc).
Key specifications for 11508027: Nonmachine Nominal Thread Diameter: 0.250 INCHES IN; Extended Washer Thickness: 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Head Height: 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Fastener Length: 1.450 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.